212661106 has 32 divisors (see below), whose sum is σ = 371226240. Its totient is φ = 89488896.

The previous prime is 212661083. The next prime is 212661121. The reversal of 212661106 is 601166212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228450 + ... + 229378.

It is an arithmetic number, because the mean of its divisors is an integer number (11600820).

Almost surely, 2^212661106 is an apocalyptic number.

212661106 is a deficient number, since it is larger than the sum of its proper divisors (158565134).

212661106 is a wasteful number, since it uses less digits than its factorization.

212661106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 212661106 is about 14582.9045803640. The cubic root of 212661106 is about 596.8923635967.

The spelling of 212661106 in words is "two hundred twelve million, six hundred sixty-one thousand, one hundred six".